1990 Dodge Dynasty electrical problems

I have a check engine light on in this car. I charged up this battery and then I retested the charging system. I found no problems with the alternator as it made no howling or screeching sounds. I tested the charging system twice and found no problems with the alternator and the battery is brand new. I received an email from your website stating that I should replace the fusible link in this car. I however got a computer code 41 which says that this code is present when battery voltage from the ASD is below 11.75 volts. Is this the same as the fusible link mentioned in the other email? Also where is the ASD in this car and is it the same thing as the automatic shutdown relay? Should I also get a new or rebuilt computer for this car? Any help is appreciated. Thank you.